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Interplay between structure and density anomaly for an isotropic core-softened ramp-like potential

Author

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  • Barros de Oliveira, Alan
  • Barbosa, Marcia C.
  • Netz, Paulo A.

Abstract

Using molecular dynamics simulations and integral equations wee investigate the structure, the thermodynamics, and the dynamics of a system of particles interacting through a continuous core-softened ramp-like interparticle potential. We found density, dynamic and structural anomalies similar to that found in water. Analysis of the radial distribution function for several temperatures at fixed densities shows a pattern that may be related to the origin of density anomaly.

Suggested Citation

  • Barros de Oliveira, Alan & Barbosa, Marcia C. & Netz, Paulo A., 2007. "Interplay between structure and density anomaly for an isotropic core-softened ramp-like potential," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 386(2), pages 744-747.
    • Handle: RePEc:eee:phsmap:v:386:y:2007:i:2:p:744-747
    DOI: 10.1016/j.physa.2007.07.015
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    Cited by:

    1. Cardoso, Daniel Souza & Hernandes, Vinicius Fonseca & Nogueira, T.P.O. & Bordin, José Rafael, 2021. "Structural behavior of a two length scale core-softened fluid in two dimensions," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 566(C).
    2. Nogueira, T.P.O. & Bordin, José Rafael, 2022. "Patterns in 2D core-softened systems: From sphere to dumbbell colloids," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 605(C).
    3. Bordin, José Rafael, 2016. "Waterlike features, liquid–crystal phase and self-assembly in Janus dumbbells," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 459(C), pages 1-8.

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